Assembling-rig.



W. H. PARRY. ASSEMBLING RIG.

APPLICATION FILED FEB. 9'. 1914.

1,148,713. Patented Aug. 3, 1915.

4 SHEETS-SHEET I.

W. H. PARRY.

ASSEMBLING RIG.

APPLICATYION FILED FEB. 9. 1914.

1,148,713., Patented Au 3, 1915.

4 SHEETS-SHEET 2.

W. H. PARRY.

, ASSEMBLING RIG.

APPLICATION FILED FEB. 9. 1914.

Patented Aug. 3, 1915.

4 SHEETS-SHEET 3- COLUMBIA PMNOURAPH (IO-,WASHINUTON, Dv c.

W. H. PARRY.

ASSEMBLING RIG.

APPLlCATlON FILED FEB. 9, 1914.

Patented Aug. 3, 1915.

4 SHEETSSHEET 4.

\nm PLANO co., WASHINGTON. D. c.

urrah sraras reruns orricn.

WILLIAIVI I-I. PARRY, 0F KENOSI-IA, WISCONSIN, ASSIGNOR TO THE SIMMONS MANU- FACTURING COMPANY, OF KENOSHA, WISCONSIN, A CORPORATION OF WISCONSIN.

ASSEMBLINGQ-RIG.

Specification of Letters Patent.

Patented Aug-3,1915.

' Application filed February a, 1914. Serial No. 817,495.

T 0 all whom it may concern Be it known that I, VILLIAM H. PARRY, a citizen of the United States, residing in the city of Kenosha, county of Kenosha,

stituent parts of wooden panel structures; to provide an apparatus of the class described which may be operated by practr cally unskilled help, which contains no delicate parts to get out of adjustment, which isextremely simple to operate, and in which the assembling pressure is applied in both directions by the manipulation of a single controlling lever; toprovide an apparatus of the class described which maybe adjusted to accommodate various sizes of panelsor other structures to'be assembled by changing minor. mechanical details of the device; to provide an apparatus which will beat all times positive and reliable in its operation, and which will always produce a finished product uniform in size and fit; to provide an apparatus of the class described which may be very easilymaintained in effective operation, and which willbe simple and economical of construction; and in gen eral to,prov ide an improved apparatus of the character referred to.

My invention consists the matters hereinafter described, and more particularly pointed out in the accompanying drawings,

in which, I

Figure 1 represents a plan .view of my apparatus as constructed for assembling the backs of wooden folding chairs, the apparatusbeing shown with the pistons withdrawn to permit theinsertion of the parts;

Fig.2 is another plan view of the apparatus shown in Flg. 1, showing the chair-back in assembled relation after it has been operated upon bythe'plungers; Fig. 3 is a side elevation taken from. the right ofFig. 1; Fig. l is a View 1 in section, taken fromthe right of "Fig.2, along a section line corresponding to the axisrof the end rail assembling cylinder; Fig. 5 is anend elevation of Fig.

2; Fig. 6 is a longitudinal section taken through the aXis ,of the controlling valve; F g. 7 1s a cross section of Fig. 6, taken along the line 7 looking in thedirection of the arrow; Fig. 8 is a crosssection of Fig. 6, taken along the line 8 looking in the direction of the arrow; and Fig. 9 is a fragmentary sectional View ,taken along the line 9 of Fig. 4, i v

Referring ,to 1 the drawings, v1 represents 7 as a whole the cast-iron base, supported upon the legs 2, which are indicated in F igs..3 and 5, but are broken off in order to reduce the size of the drawing. Upon two exten sions 3 and 4 of the base are boltedthe two pressure cylinders 5 and 6. These cylinders contain pistons 7, which are connected to piston rods 8 sliding Within stuffing bOXGSQ in the front head'lO of each cylinder. Each cylinder is constructed from a tube, the back end of whichis closed by a stationary head 11, the piston being inserted by removingthe front head 10, which 'has a,

flange provided with screw-"threadsengaging the exterior of the end "of the cylinder. To the fTOIllJ' 6Ild ofthe piston rod of the cylinder 5:issecured a plunger block 12, the

lower portion :or foot 13 of which slides .1. The plunger 12 is formed with a pair of projecting wings ,orqarms I5, 15, which are of equalsize andfdressed off to "furnish a pair of pushing surfaces 16'v in @alinement I and at right angles to the .aXis of the cylinder-5'. The axis of the cylinder '6 is arranged inlthis instance at'right angles to the axis of the cylinder '5, and its plunger block 1 1 is also provided with a pair of similar wings orarms provided with corresponding pushing surfaces 16., also at right angles to the, axis of the cylinder.

Upon the surface of the base casting" l are mounted a pair of strips 17 for the purpose of'bringing theslats of the panel'to the height necessary fortheir entering slots or'kerfsin the end members of the chairback. Theasmall angle pieces 18, which are bolted to the depressed surface of the table,

lgether. c Theivalve control will now bedescribed.

are for the purpose of furnishing a pair of stops against which to place the initial one ofanumber of slats in order to locate them in proper position for assembling. The upstanding lugs 19 receive the thrust due to the pressure of the cylinder 6v transmitted. [to the chair members while they are being assembled. The upwardly projecting rib 20 of the bed, Figs. 1, 2 and '4 in a similar manner receives the thrust pressure of the cylinder 5 transmitted to the slats and end rails "while they are being assembled to- Each cylinder is operated by compressed air of suitable pressure admitted to the front or to the back thereof, depending upon which. way the piston is to be operated. The actual'assembling of the chair members is effected by admitting airto the backs of the cylinders, and. thus pushing the plungers forward. Duringthetime' that the airunder pressure is being supplied to therear ofeither one of the cylinders, the

front end of that particular cylinderis open to the atmosphere, and thus exhausting. In order to eflect withdrawal of the plunger ,previous to' another cycle of assembling operations, air under pressure isfadmitted to the front, while the back end 1s allowed to exhaust freely.

Secured to thelower. part of the base casting .1, upon a suitable bracket 21, is

mounted .a cylindrical casting 22, which,

asseengin Fig. 6,: is made. in two sections,

threaded together so'as to permit the in sertion of the rotary valve 23. The latter consists of aflattened cylindrical head por- V tion provided with a hollow sleeve which extends through a cylindrical hole 'in the casting 22 and projects therefrom far enough to permit the attachment of the con- .may positively oscillate the latter. head portion ofthe valve 23 .is of such trol handle. 24. The handle 24 is suitably keyed to the sleeve ofthe valve so that it The size as to give ample clearance between it andthe cylindrical chamber 25 in the cast- .ing 22, withinv which'the valve is located. One end of the chamber 25 forms a valve seat, against which the valve operates and is pressed by the action of the.air.under .compression in the chamber25.

H The air supply is conducted to the .valve chamber through the threaded opening. 26 by means of ;a -pip e; line 27 which communicates with the air main through the shut-off valve 28.

In the-rotary valve-headare drilled three.

cylindrical openings 29, 30 and 31, which pass fromthe front to the rear of the valvehead, ;as 'shown in Fig. 6,v their position in the" head'being' clearly shown inzFig. .8.

These ports arethusalways direct com- .muniaa pn .Wit the .QQmpre ed-ai supp y, I and pressure to the cylinder ports when the valve is oscillated into theright position. The valve-head is also apertured in three places, as illustrated in Fig. 8 at 32, 33 and 34, each opening, as shown in Fig. 6, consisting of a radial portion which communicates with the longitudinal hole in the sleeve of the valve, and a short longitudinal portion which connects the radial portion with the operating face of the valve. The ports just described are for the purpose of exhausting the air from the cylinders, the spent air passing out through the longitudinal hole in the valve-sleeve. The main body portion of the stationary-valvechamber casting is provided with *four right-angled valve ports 35, 36, 37 and 38 In the'position shown infull' lines, which I designate a,'the ports occupy the relation shown in the various sectional views of the" valve mechanism. In this position. the

port 30 is in register with the port'38, and

thus admitsair to the frontof the cylinder 5, the back of the latter being placed in communication with the atmosphere by' the right-angled exhaust-port 33 now in register with the port'35. In a similar manner, the front end of the cylinder 6 is supplied with air under pressure through the port 31, which registers with the port 37 the back-end. exhaust being effected by the position of the port 34' now in'register with the port 36. It will thus be clear that a in the position a of the. handle both cyline ders will be. under. pressure at their front endsjand exhausting at thefback, and the plunger blockswithdrawn. f \Vhen' the handle ismoveolto the posiwill then register with the port 35 leadson 5, shown dotted in 'Fig. a, the port29 f' ing to the back endi of the cylinder 5, while the port32 will at the same 'time'be placed in register with the port.38, which'communicates'with' the front end ofthe same -cyl- I inder. Thus air under. pressure will enter the back of the cylinder-land force the piston and .plunger block outwardly, while the front end of the cylinder exhausts'freelv' through the hollow valve-stem.- While this v is going on, the portsl36 and 37 ;of the ,other cylinder 6 have been closed by the oscillation 'of' th'e valve, and thus nothing happens to the piston of that cylinder- If V the handlewere'left in the'position Z) for a considerable lengthof time, obviously the difference in pressure be ;tW'een the front "and back or the "cylinder -s would gradually i equalize *itself by leakage, but "no *movement would occur.

Ifthe valvenow beo'scilliit'ed soth'ait'the handle occupies the positi'on'shown "atfnin dotted lines in Fig. "3, the valve-150M829 eomesaintoalih'ement with the "end "of the "port "36, and thus. admits "compressed an to the port is nfregister with the port "37, i'which conveys the exhaust from "the front end of thery lihder. The-effect is aims to push forward the piston and p1uii'gerb1o'ck "of thecyliiider' 6. While this condition prevails, the vports f35 and ;'38-afe "completely sealed byth'einovementdf the valve, and no change is made in the air pressureiineither side of the piston, WhichthusTreiiiains in its previous position. It slloiilii herebe noted that the arc of movement of the handle 24 When in the position b, the cylinder 5 will be'operating, while the cylinder 6 is holding back its plunger; and when in the position 0, the cylinder 6 will be operating, while the cylinder 5 is holding back its piston and plunger.

When actually using the apparatus to assemble the panel of a chair-back, I first of all place the top end member or rail 44 upon the slightly raised portion 45 of the base casting and against the side of the rib 20. The lower end member or rail 46 is then placed upon the raised portion 47 and against the pushing surfaces 16 of the plunger 12. The side leg or stile 48 is then laid edgewise in the corner formed by the lugs 19, and the little bracket 49 bolted to the top of the basecasting. The other side leg or stile 50is then also laid edgewise in the corner formed by the locating bracket 51 and the two pushing surfaces 16, the

bracket 51 being of such height as to engage the lower edge of the member or stile 50, while not interfering with the advance of the plunger block 14. The slats 52 are then laid flat upon the strips 17 and pressed sidewise close together, the lugs 18 forming an end stop. When all the members are in this position, the ends of the slats are in register with openings on the inside opposite surfaces of the end members 44 and 46. These openings take the form of longitudinal slots or kerfs 53 Wide enough and long enough to accommodate the ends of all of the slats When the latter are assembled together.

Eachof "the ends of 'the members 44 and "46 isiprovided with a circular dowel pin 54. 'l-Thse dowel .pins, when the "various members are assembled together, =enter "correfspondin-g'circular 'holesFin theppposed inner 'facesof the side legs 48 and 50. Having laid the various parts in assembling. posi- ,tion, the parts b'eingfindicated in dotted "lines in'Fig. 2, the'lever24 still being inithe position'a, shown in Fig.3, "the lever'is then moved'to the position "'b,'and the cylind'er5 isen'ergiz'ed and pushes 'forwa'rd'the plunger-block 12.; 'Theends of the slats are thus rear-cad into the cbrr'esponding slots "in the end members "44 and '46. :In order 'to 3 prevent the-breaking of the slats and to bring the dowel pinsofjthe'endmember '46 into "proper register with the holes 'in'the sidel'egs48 -and50, thefplun'ger block is furnished "With an "adjustable screw stop 55, which is adjusted to strike the edge 56 of the "slot "in the base casting atthe pro er 'peint. This'operation, besides assembling the slats, brings about the proper positioning of the end member 46 for the next step in the assembling process, which consists in moving the lever 24 from the position 6, through the position a, and to the position 0. This, as before described, results in the Withdrawal of the plunger 12 by the cylinder 5 while the 5 lever is passing through the middle position, and when the latter reaches the position 0, the cylinder 6 is operated and the plunge-r 14 pushed forward. When this occurs, the

dowel pins in the ends of the members 44 0 and 46 enter their corresponding holes in the members 48 and 50, and the assembling process is complete. Before straightening up the lever 24, it is customary to drive a small tack or nail from the upper side of each side member into and through the center of each of the dowel pins. The lever is then returned to the middle position a, and the chair-back removed, completely assembled.

In its broader aspects, the invention is not limited to the details of construction set forth above, except as specified in the appended claims.

I claim as my invention: 7

1..A panel assembling mechanism comprising a base-frame and fluid-pressure operated means Working at substantially right angles in a plane parallel to the working surface of the base-frame, said working sur- 2 face carrying abutments at substantially right angles to each other and having spaced parts at a higher level to support material, and stops having a wide range of adjustment between said abutments, means on said spaced parts at another level to support ma-- terial of different thickness, and valve connections causing the alternate advance and retreat of the fluid-pressure means.

2. A panel assembling mechanism com prising a'base-frame and fluid-pressure operated means Working at substantially right 7 angles in a plane parallel to the Working surface of the base-frame, said workingsur- :face carrying ,abutments at substantially right angles to each other and having spaced parts at a higher level to support material,

serving as a position, stop therefor, and an adjustablestop carried by one of theseelements engaging the other, andvalve connectionscausingthe alternate advance andretreat of the fluid-pressure means. i H

3. A panel assembling mechanism comprising a base-frame and fiuid-pressure operated means Working at substantially right angles in-a plane parallel to the Working surface of the base-frame, said Working surface carrying iabutments at substantially right angles to each other and having spaced parts at a higher level tosupport material, and stops having .a Wide range of adjustment between said abutments, means on-said spaced parts at another level'to support material of different thickness, an abutment having an undercut slot, and: a fluid-pressureplunger block having a' foot playing in the enlarged partof the'slot and connecting with. the'working. surfaces through the narrower part of said slot, andvalve connections causing the alternate advanceand retreat of the fluid-pressure means.

1 c 5 WVILLIAM PARRY.=:

Witnesses 1 V C NTWELL, JOHN BURNS.

Copies of thi s patent may be obtained for fivecents eachpbyaddressing the 'iCommissioner ofhPatents.

x in Washington,D.C. V 

